add stops info

client/MhdMapClient.js

@@ -68,11 +68,13 @@ export default class MhdMapClient {
 
         this.baseMapLayer = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
             attribution: '© OpenStreetMap',
-            maxZoom: 19
+            maxZoom: this.map.options.maxZoom,
+            maxNativeZoom: 19
         }).addTo(this.map);
 
         this.georefLayer = L.tileLayer('https://maps.georeferencer.com/georeferences/e886f898-04e0-4479-8cd3-bbe4ae7537b3/2022-06-22T09:24:26.012877Z/map/{z}/{x}/{y}.png?key=c0WCCJEkXmpgh7TxHg2U', {
-            maxZoom: 17
+            maxZoom: this.map.options.maxZoom,
+            maxNativeZoom: 17,
         });
 
         this.layerControl = L.control.layers({
@@ -277,6 +279,16 @@ export default class MhdMapClient {
 
     }
 
+    async fillStopInfo(stop, event) {
+        let stopData = await this.sendWs('requestStopInfo', {
+            stationStopId: stop.stationStopId,
+        });
+        if (stopData.data.departures.length === 0)
+            return;
+
+        console.log(stopData.data.departures.length);
+    }
+
     async drawVehicleTrace(vehId) {
         this.currentVehicleTrace.clearLayers();
         if (vehId === null)
@@ -414,6 +426,12 @@ export default class MhdMapClient {
             this.drawVehicleTrace(veh.vehicleNumber);
         }
 
+        let stop = event?.popup?._source?.options?.data?.stop;
+        if (stop) {
+            // the user has clicked a stop marker
+            this.fillStopInfo(stop, event);
+        }
+
     }
 
     _popupCloseEvent(event) {

server/BratislavaOpendata.js

@@ -6,8 +6,8 @@ export default class BratislavaOpendata {
         this.apiKey = apiKey;
     }
 
-    async fetchOneStop(stationId) {
+    async fetchOneStop(stationStopId) {
-        return this.request('/stationstop/' + stationId);
+        return this.request('/stationstop/' + stationStopId);
     }
 
     async fetchAllStops() {

server/MhdMapApp.js

@@ -14,6 +14,7 @@ export default class MhdMapApp {
         this.stops = null;
         this.oldVehicles = null;
         this.vehicles = null;
+        this.stopCache = {};
         this.lastUpdatedStatic = null;
         this.lastUpdatedDynamic = null;
         this.lastDelta = null;
@@ -92,6 +93,22 @@ export default class MhdMapApp {
         }
     }
 
+    async getStopInfo(stationStopId) {
+        let cached = this.stopCache[stationStopId] || null;
+        if (cached && cached.t.getTime() > (Date.now() - 15 * 1000)) { // cache for 15 seconds
+            return cached;
+        }
+
+        const data = await this.opendata.fetchOneStop(stationStopId);
+        if (!data)
+            return cached; // null or stale
+
+        return (this.stopCache[stationStopId] = {
+            t: new Date(),
+            data: data,
+        });
+    }
+
     calculateVehiclesDelta(beforeObj, afterObj) {
         let delta = {};
 
@@ -216,6 +233,8 @@ export default class MhdMapApp {
             return await this.recorder.getVehicleTrace(data.vehicle, data.count || 20);
         } else if (action === 'requestLineTrace') {
             return await this.recorder.getSimpleLineTrace(data.line, data.count || 20);
+        } else if (action === 'requestStopInfo') {
+            return await this.getStopInfo(data.stationStopId);
         }
         return null;
     }